Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Patent
1975-04-21
1976-11-30
Vrablik, John J.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Helical working member, e.g., scroll
418 57, F01C 102, F04C 1702, F01C 1900
Patent
active
039946355
ABSTRACT:
A scroll member is provided for use in scroll-type apparatus. It is formed of a separate end plate having an involutely configured groove in the face thereof and a separate involute wrap which is seated in the groove. The seating of the wrap in the groove may be such as to permit it to undergo small axial and radial excursions within the groove to impart compliance/sealing characteristics to the scroll member. Alternatively, the wrap may be rigidly mounted in the groove and, if desired, separate compliance/sealing means provided for the wrap. The construction of scroll members according to this invention achieves a marked decrease in cost of the scroll members and of scroll-type apparatus incorporating them.
REFERENCES:
patent: 801182 (1905-10-01), Creux
patent: 1041721 (1912-10-01), Ball
patent: 1376291 (1921-04-01), Rolkerr
patent: 1766005 (1930-06-01), Sullivan
patent: 3506275 (1970-04-01), Moriyama
patent: 3600114 (1971-08-01), Dvorak et al.
patent: 3718412 (1973-02-01), McCormick
patent: 3827701 (1974-08-01), Sakamaki
patent: 3874827 (1975-04-01), Young
Arthur D. Little Inc.
Lepper Bessie A.
Vrablik John J.
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